From 6a9448b523b95dbc850e856508342644fc17db45 Mon Sep 17 00:00:00 2001
From: Jeffrey Seyfried <jeffrey.seyfried@gmail.com>
Date: Mon, 3 Apr 2017 22:23:32 +0000
Subject: Fix bug parsing `#[derive]` macro invocations.

---
 src/libsyntax/ext/derive.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'src/libsyntax/ext')

diff --git a/src/libsyntax/ext/derive.rs b/src/libsyntax/ext/derive.rs
index c79040424f6..e7c5d8278d9 100644
--- a/src/libsyntax/ext/derive.rs
+++ b/src/libsyntax/ext/derive.rs
@@ -26,7 +26,8 @@ pub fn collect_derives(cx: &mut ExtCtxt, attrs: &mut Vec<ast::Attribute>) -> Vec
             return true;
         }
 
-        match attr.parse_list(cx.parse_sess, |parser| parser.parse_path(PathStyle::Mod)) {
+        match attr.parse_list(cx.parse_sess,
+                              |parser| parser.parse_path_allowing_meta(PathStyle::Mod)) {
             Ok(ref traits) if traits.is_empty() => {
                 cx.span_warn(attr.span, "empty trait list in `derive`");
                 false
-- 
cgit 1.4.1-3-g733a5